Super Skyscrapers: One World Trade Center
Preview | 30s
"One World Trade Center" - Part one of four. The tallest in the western hemisphere, this landmark building is engineered to be the safest and strongest skyscraper ever built. Follow the final year of exterior construction as it reaches the symbolic height of 1,776 feet. (Also Fri. 2/7 at 4AM
Aired: 02/05/14
Expired: 02/06/14
